have gone thru the thyroid difficulties, watching sugar etc, in addition to MI, and the latest, I was recently found to have Vit D deficiency. One of my sis told me she was too. We have both been on extra supplementation for the last month or so and both noticed improvement in joint, body, muscle pain, etc. Just my two cents. And she'd also had the Vit B deficiency stuff. Interesting, all of it. There are also double standards for people with MI in general and folks who are aging, or have diabetes or any chronic conditions. Fortunately for the moment, I have several decent docs, thank goodness, and it makes a lot of difference!